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-rw-r--r--kernel/sched.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 6798328a2e0e..da26f46d50d7 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4911,14 +4911,18 @@ cpumask_t nohz_cpu_mask = CPU_MASK_NONE;
4911static inline void sched_init_granularity(void) 4911static inline void sched_init_granularity(void)
4912{ 4912{
4913 unsigned int factor = 1 + ilog2(num_online_cpus()); 4913 unsigned int factor = 1 + ilog2(num_online_cpus());
4914 const unsigned long gran_limit = 100000000; 4914 const unsigned long limit = 100000000;
4915 4915
4916 sysctl_sched_granularity *= factor; 4916 sysctl_sched_granularity *= factor;
4917 if (sysctl_sched_granularity > gran_limit) 4917 if (sysctl_sched_granularity > limit)
4918 sysctl_sched_granularity = gran_limit; 4918 sysctl_sched_granularity = limit;
4919 4919
4920 sysctl_sched_runtime_limit = sysctl_sched_granularity * 5; 4920 sysctl_sched_latency *= factor;
4921 sysctl_sched_wakeup_granularity = sysctl_sched_granularity / 2; 4921 if (sysctl_sched_latency > limit)
4922 sysctl_sched_latency = limit;
4923
4924 sysctl_sched_runtime_limit = sysctl_sched_latency * 5;
4925 sysctl_sched_wakeup_granularity = sysctl_sched_latency / 2;
4922} 4926}
4923 4927
4924#ifdef CONFIG_SMP 4928#ifdef CONFIG_SMP